fix(types): app.router.url params should be optional (#5132)

add missing pathFor and methods defines

Author: fengmk2

index.d.ts

@@ -546,15 +546,15 @@ declare module 'egg' {
     headers: { [key: string]: string };
   }
 
-  export interface Router extends KoaRouter<any, Context> {
+  export interface Router extends Omit<KoaRouter<any, Context>, 'url'> {
     /**
      * restful router api
      */
     resources(name: string, prefix: string, ...middleware: any[]): Router;
 
     /**
      * @param {String} name - Router name
-     * @param {Object} params - more parameters
+     * @param {Object} [params] - more parameters
      * @example
      * ```js
      * router.url('edit_post', { id: 1, name: 'foo', page: 2 })
@@ -565,7 +565,12 @@ declare module 'egg' {
      * @return {String} url by path name and query params.
      * @since 1.0.0
      */
-    url(name: string, params: any): any;
+    url(name: string, params?: any): string;
+    /**
+     * Alias for the url method
+     */
+    pathFor(name: string, params?: any): string;
+    methods: string[];
   }
 
   export interface EggApplication extends EggCoreBase<EggAppConfig> { // tslint:disable-line

test/fixtures/apps/app-ts/app/controller/foo.ts

@@ -30,6 +30,13 @@ export default class FooController extends Controller {
     this.fooLogger = ctx.getLogger('foo');
     assert(ctx.app.ctxStorage);
     assert(ctx.app.currentContext);
+
+    // router
+    console.log(ctx.app.router.url('foo'));
+    console.log(ctx.app.router.url('foo', {}));
+    console.log(ctx.app.router.pathFor('foo'));
+    console.log(ctx.app.router.pathFor('foo', {}));
+    console.log(ctx.app.router.methods);
   }
 
   async getData() {